Finding the Fourth Proportional to 57,123.84, 78,825.60 and 31,964.16

Step by Step Solution

1. Step 1: Write the proportion equation
   57,123.84 : 78,825.60 = 31,964.16 : x
2. Step 2: Convert to fraction form
   57,123.84/78,825.60 = 31,964.16/x
3. Step 3: Cross multiply
   57,123.84x = 78,825.60 × 31,964.16
4. Step 4: Simplify right side
   57,123.84x = 2,519,594,090.50
5. Step 5: Solve for x
   x = 2,519,594,090.50/57,123.84
6. Step 6: Final answer
   x = 44,107.58